Audio Database

WZ50
Commentary

Bulb-type FM/AM tuner.

Equipped with a relay controlled muting circuit.

Equipped with AFC switch.

Equipped with a stereo indicator.

Equipped with separation control and level control functions.

A switching system is adopted for the MPX circuit.

Uses a double limiter circuit.

The AM tuner section consists of a RF1-stage 3-row varicon.

Equipped with ferrite antenna.

Model Rating
Type FM/AM Tuner
Receiving frequency FM : 76 MHz to 90 MHz
AM : 535 kHz to 1605 kHz
Practical sensitivity FM : 1.2 μ V (S/N30dB)
AM : 25 μ V (S/N30dB)
Image ratio FM:50dB
AM:60dB
Separation 30 dB or More (80 Hz to 10 kHz)
42 dB or More (1 kHz)
Leak carrier 40 dB or less
Distortion factor Not more than 1%
Output 1 Vmax (Level Adjustable)
Used vacuum tubes, etc.
Vacuum Tubes (17 pcs) 6CW4 : 1 Piece
6BA6 : 4
6AQ8 : 2 Pieces
6AU6 : 3 Pieces
6AL5 : 1
6DT8 : 1
6BL6 : 1
12AU7 : 1 Piece
12AX7 : 1 piece
6BE6 : 1
6R-E13 : 1
Diode (9 pcs)
External dimensions Width 390x Height 155x Depth 290 mm
Weight 11.2kg